1987 camaro z-28 350, 5.7 TPI 700r4 tranny, i couldent get it to shift the other day when i posted, i checked the governer gear , it looked good, the throttle cable i checked, its good , the fluids are all in good condition, i read on a camaro 700r4 tranny sight that the throttle ball or something like that could be stuck and i tried that earlier i got the car up about 25 mph, let off the gas , then punched it hard 6 or 8 times, anyways it shifted to second after playing with the gas pedal and the shifter while going down the road, so i took it back home and took off the throttle cable and pulled it pretty good about 6 or 7 times, got someone to follow me out onto a longer road then where ive been testing in my neighborhood, the car took off and got up to about 25-30 mph, i again played with the gas pedal and shifter some and finally it shifted , when it was time for it to shift to third it wouldent so i got off it and punched it hard a couple or so times and played with the shifter some more, got on it pretty good and then let back off, got on it again in about 6 or 7 seconds and then it shifted to third, i got it up to 65 or 70 and the rpms were way up there and it wasent shifting to fourth, i tried and started the whole process a couple time but never could get it to shift to fourth and like said before had trouble and had to play with the gas and shifter alot to get it to shift but never got it to fourth. Also when i got it to third , i slowed down to turn about 5 mph and when i went to take off the car was still stuck in third, that happened twice and i downshifted to first and then back to drive and it shifted out ok the second time back to second and third gear .Ive adjusted the throttle, detent cables, all fluids are good , ive checked the governer gear, it was good, checked the vacuum lines after i got a diagram they are ok , dont know what could be causing the problem? does anyone have any ideas on what could be causing this, im stumped.